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Discuss Cone step drill hole cutters in the Electrical Tools and Products area at ElectrciansForums.co.uk.

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  1. gazdkw82
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    gazdkw82 Trainee Trainee Access

    Location:
    leicester
    Looking at getting a set of cone step drill bits buts it's a mindfield. So many seem really cheap but promise the world.

    All seem to be Chinese produced and labelled as titanium, is there a particular brand, variety that I should be looking at? I always prefer to buy quality for longevity.
     
  2. Pete999
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    Pete999 Forum Mentor

    Location:
    Northampton
    Business Name:
    None
    RS do a very good set, had mine for about 10 years
     
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  3. Dillb
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    Dillb Electrician's Arms

    Location:
    Nottingham
    You looking at using them to drill metal or plastic?
     
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  4. Andy5678
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    Andy5678 Electrician's Arms

    Location:
    Scotland
    I have had the same ones for about 13 years. Think they were from RS components. Served me well and hopefully will for more years.
     
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  5. Flanders
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    Flanders Regular EF Member

    Location:
    Tamworth
    Ive just got a no make set , just use them for drill plastic though i always use hole cuters for metal
     
  6. gazdkw82
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    gazdkw82 Trainee Trainee Access

    Location:
    leicester
    Probably both but more on metal than plastic
     
  7. Leesparkykent
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    Leesparkykent Super Moderator Staff Member Super Moderator

    Location:
    Kent
    Cheap ones are fine for plastic but they don’t last long on metal. Always handy to have though to enlarge holes in trunking etc. For the bog standard size holes in metal I.e. 20mm, 25mm and 32mm I use the armed acceler8 holesaws.
     
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  8. Marvo
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    Marvo Admin and gender confused Staff Member Admin

    Location:
    South Africa
    Good cone cutters are helluva expensive and I much prefer the proper hole saws.
    index.jpg
     
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  9. PEG
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    PEG Respected Member

    Location:
    Manchester
    Get a quality brand,if choosing a cone type cutter,and save it's life,by changing down speeds,as you step up the size increments.
    You can re-sharpen them,but it takes a bit of micro-carbide trickery :)
     
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  10. Pete999
    Online

    Pete999 Forum Mentor

    Location:
    Northampton
    Business Name:
    None
    Agree but for a neater job I prefer these.
    Q-Max Sheet Metal Cutter / Hole Punch 20Mm Diameter Round | eBay - https://www.ebay.co.uk/itm/Q-Max-Sheet-Metal-Cutter-Hole-Punch-20Mm-Diameter-Round/112730755413?_trkparms=aid%3D555017%26algo%3DPL.CASSINI%26ao%3D1%26asc%3D20151005190540%26meid%3De4db0c0dc22c4347803142e7fa0e733b%26pid%3D100505%26rk%3D1%26rkt%3D1%26%26itm%3D112730755413&_trksid=p2045573.c100505.m3226
     
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  11. gazdkw82
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    gazdkw82 Trainee Trainee Access

    Location:
    leicester
    I will get a decent hole saw set (probably the armeg sheet metal ones) however if I need to step up or a size that's not in the armeg set I'll need a cone drill
     
  12. telectrix
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    telectrix Scouser and Proud of It Respected Member

    Location:
    cheshire/staffordshire
    Business Name:
    Telectrix
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  13. Rpa07
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    Rpa07 3000 posts - only 50554 behind Telectrix! Electrician's Arms

    Location:
    Bristol
    Business Name:
    Ebenezer electrical
    I always get mine from Aldi, for enlarging holes they do the job.
    They are also cheap enough to not worry if they blunt a bit.
    If the pilot is blunt I’ll pilot with another drill bit and enlarge with the hole cutter. It may waste 45 seconds of my day but I make that up by not chewing my food!
     
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  14. Strima
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    Strima Electrician's Arms

    Location:
    St Neots
  15. Sparky_Steve
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    Sparky_Steve Regular EF Member

    Location:
    sussex
    my armegs are still going strong after a few years use
     
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